San Antonio Weather Forecast

    • 5
    • 33

    Partly Sunny

    • 8
    • 34

    Partly Sunny

    • 9
    • 37

    Partly Sunny

    • 7
    • 36

    Mostly Sunny

    • 9
    • 39

    Mostly Sunny

    • 15
    • 42

    Partly Sunny

Today 4 Dec Southern San Luis Valley

Mostly cloudy in the morning then becoming mostly sunny. Highs 27 to 33. Southwest Winds up to 10 Mph.

Tonight 4 Dec Southern San Luis Valley

Mostly cloudy with a 50 percent chance of snow Showers. New snow accumulation up to 1 inch. Lows 8 to 14. West Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Antonio Temperature Statistics

December Temperature

San Luis Valley Regional Airport (29.8 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    28.1 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

San Luis Valley Regional Airport (29.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    26.5 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    62.4 °F
Get WillyWeather+ to remove ads